Improvement in window-sash weights



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J T. FOSTER, OFJERSEY CITY, NEW` JERSEY, ASSIGNOR TO WILLIAM STANLEY, OE ENGLEWOOD, -NEW JERSEY.

Letters Patent No. 108,994, dated November 8, 1870.

IMPROVEMENT IN WINDOW-SASH WEIGHTS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.:

Be it known that I, JOHN T. Fos'rnn., of Jersey Oity, in the county of Hudson and State of New J ersey, have invented a new and useful Improvement in lVindow-Sash Weights; and I do hereby declare that the following is a full, clear, and-exact description thereof, reference being had to the aecompanyingdrawing and tothe letters ot' reference marked thereon and making a part of this specication. e

My invention has relation to that kind of sashweights which have a case made of sheet-iron or other metal, which is afterward filled with slag. from furnaces, orother suitable material, and consists in an improved manner of forming or constructing such outer or metal ease.

It has heretofore been the praetice,in forming t-he upper end or conical portion of such case, to cut, with shears or otherwise, a number ot' slits in the end of the sheet-iron tube, of about the depth of the required cone, and then lap o'r press theseveral separated parts of the tube `overeach other, which are afterward hammered down over or upon a conicalshaped mandrel, so as to give-the end of vthe tube-.the required taperingor conical form.

It is found Irthat such cutting or dividing the tube weakens it at the part where the greatest .strength is required.

My invention has for its object the forming the base with a conical swaged end, in combination with an orifice for introducingr a core to form a hole for the cord.

Instead of slitting or dividing the end of the tube, I press orforee inward, by a suitableA machine with movable jaws, or by dies made for the purpose, the end of the tube at a number' of points equally distant from each other, as shown in perspective in Figure 1, and in an end view in Figure 2,' forming or making the parts or plaits a, thus pressed, of sufficient depth at the top or end to take up the quant-ity of metal necessary to reduce the opening at the end to the proper size to receive the eye-shank, or allow the cord to be passed through the same, and having such plaits or depressed portions. tapering to a point at the base of the cone, as shown in iig. l.

After the tube or case has been: thus shaped, it is removed to another machine and placed over a mandrel, shown at b, in Figure 3, in dotted lines, standing perpendieularly, and made conical at -the top, and having a part erstem project-ing upward from the point, .of a size proper for the oriiicc for the reception of the shank when a shank is used, or for the cord.

A heavy female die, tting the head or top of the mandrel, and having a hole drilled in it to receive the stem ot' the mandrel, is then caused to drop drown upon the iuted end of the case or tube, whichlattens down the plaits a upon and around the ,center of the mandrel, lthus forming the end of the caseinto a conical shape, as shown in iig. 3, and at the same' time forming in it, by means of the stem, an opening of apropcr size to receive the shank or allow vthe cord to pass through it. v

The concis thus formed from the whole tube. and without dividing or cutting any part of it.

When formed in this manner -the cone of the ease is much stronger and more durable than when the met-al is divided and the separate parts lapped upon each other, and, by reason ot' .such additional strength thus secured to the case, the iron shank or eyes heretofore used in such sash-weights to receive the cord can be dispensed with, thus effecting a very considerable saving inthe cost of manufact-ure.

To form a recess o r eye in the weight Vitself to. receive the cord when the shank is dispensed with,I cut ahole, c, in the sident' the tube, just below the base of the conc, and of a size sulicient to receive the knotted end-ot' the sash-cord.

YVhen the ease is to be filled with hielten slag or otherlnateral, in this hole is inserted a cast-iron chill, of a curvedibrm, as indicated by the dotted lines in Figure 5, of a size to till suoli hole, and alsoithe -"opening inthe top of the cone.

The ease having been filled with molten 'slag or other material, a slight blow with a hammer on the small end of the chill, as soon as the filling is set, causes the chill to drop out, leaving the cone perfectly' hard andsolid.

A further advantage lis secured by making the cone in the manner described, that when the ease `i s filled with any molten matter, the filling cannot leak out from the sides of the cone and adhere to the case, .as it sometimes does when the cone is made in the old manner. Y

The case 1s thus left smoother and handsomer, and

requires less labor and expense to linish for market,

lhe advantage ot' being enabled to form a recess or solid eye in the body ot' the weight for the reception of the cord is also very considerable in this style of weights,as it is diflicult, in filling. the case, to prevent the shank-eyes project-ing too far, and such projecting eyes are also liable to be broken off or bent intransportation. l

Such projecting eyes also lengthen the weight, and require more cord in hanging, which are serious disadvantages.

A further advantage is secured by making the cone in the manner described, and that is that the weights can be made more rapidly, and at less cost, than when made as heretofore.'

I do not claim the invention of a. weight with an exterior metallic onse, and an interior filling for the same, or making such a case conical att-11o upper end; but

A sash-weight case of thin metal, furnished with a. conical swaged end with :in orifice in the top thereof, and having an orifice beneath said end l'or 4introdnoing a. core to form nl hole inA the cast weight for inse1t-ing`the cord, 11s desoljibed.

XVtnesses:

W. MUIRHEID, J. VF. MCG-EE.

JoHN T. FOSTER. 

